Synthesis of a triacrylate crosslinking agent and its use in the preparation of macroporous polymers

Abstract

A triacrylate crosslinking agent, 2, 2', 2" -nitrilotriethyl triacrylate (NTETA), was synthesized through an original procedure from triethanolamine by a reaction with acryloyl chloride. Hydrophilic polymer supports were prepared by suspension copolymerization of 2-hydroxyethyl methacrylate (HEMA) with NTETA in an aqueous medium in the presence of cyclohexane (Cyc) as inert diluent. A new macroporous polymer, at a polymerization temperature of 85°C, was obtained. Porous properties of this copolymer were studied by swelling, mercury porosimetry and scanning electronic microscopy (SEM).

Voltage-Tunable Volume Transitions in Nanoscale Films of Poly(hydroxyethyl methacrylate) Surfaces Grafted onto Gold

“…Finally the spectrum in Figure d was taken after hydrogel formation. The peak at 1731 cm -1 , which dominates the spectrum, is assigned to side chain ester carbonyl stretch in poly(HEMA). ,, In addition, the absorption is ca. 10 times more intense, as expected based on the thickness of the polymer layer.…”

Synthesis and characterization of new hydrogels through copolymerization of N-acryloyl-tris-(hydroxymethyl)aminomethane and different crosslinking agents

“…Different chemical and physical crosslinking methods have been reported for the production of hydrogels [3]. Several works have also described the synthesis of new macromonomers [13][14][15][16][17][18][19] and crosslinkers [20][21][22] to be used in the manufacture of polymeric networks. Different swelling and mechanical properties are observed in hydrogels according to the nature and concentration of the crosslinking agent and to the nature of the swelling medium used in the preparation [4].…”